King County, Washington
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 476,700 | 60.0% | 273,171 | 34.4% | 44,207 | 5.6% | 794,078 |
| 2004 | 580,378 | 65.0% | 301,043 | 33.7% | 12,113 | 1.4% | 893,534 |
| 2008 | 648,230 | 70.3% | 259,716 | 28.2% | 14,086 | 1.5% | 922,032 |
| 2012 | 668,004 | 69.1% | 275,700 | 28.5% | 23,450 | 2.4% | 967,154 |
| 2016 | 718,322 | 71.9% | 216,339 | 21.7% | 63,838 | 6.4% | 998,499 |
| 2020 | 907,310 | 75.0% | 269,167 | 22.2% | 34,030 | 2.8% | 1,210,507 |